This is the science. Yaṁ yaṁ vāpi smaran bhāvaṁ tyajaty ante kalevaram (BG 8.6), in the Bhagavad-gītā you will find, "At the time of death, as you are thinking, you will be carried to such body." This is the example. Just like this Bharata Mahārāja, such an exalted person, he had to become a deer. But because he was very spiritually advanced, although he became a deer, he was living with the saintly persons. Where saintly persons were sitting, he was sitting down there. He was eating the flowers and leaves which the saintly person left after worship. In this way, he had to wait for one life, and the next life, he became a son of a nice brāhmaṇa. So because he was remembering this different birth, he became very grave and silent. He was not talking with anyone. So it is very dangerous to contaminate. So he was known as Jaḍa Bharata. This story you will find in the Śrīmad-Bhāgavatam.
So just try to understand that death is there. You have to die. You may declare yourself, "I am very independent. I don't care for God or anyone," but God will not excuse you. You have to die. You will see God in the form of death. Just like Hiraṇyakaśipu, he is seeing. Prahlāda says: "My dear father, why don't you accept God?" "No no no. Who is God? I don't care for your God. You rascal boy, you are chanting Hare Kṛṣṇa." So, so God . . . the atheist may declare like that, "There is no God," but he will see God as death. That is compulsory. There is no excuse. So at the time of death, the mentality which you have created by practice, sadā tad-bhāva-bhāvitāḥ (BG 8.6), will act. This Hare Kṛṣṇa movement, this Kṛṣṇa consciousness movement, is simply educating people so that at the time of death one can remember Kṛṣṇa. That's all. This simple . . . and if he is fortunate enough to do this, immediately he is transferred to the Kṛṣṇaloka. Immediately, within a second. That is stated in the Bhagavad-gītā, tyaktvā dehaṁ punar janma naiti mām eti kaunteya (BG 4.9).
So why we should waste our time thinking so many nonsense things? Why not think of Kṛṣṇa, how beautiful He is, standing here with Rādhārāṇī? If we come here and take the impression and simply think of Him, our life is perfect. This is Kṛṣṇa consciousness. What is the difficulty and what is your loss? If you gain such big profit simply by thinking of Kṛṣṇa, why should you lose this opportunity, this human form of life? A cat cannot be educated. Dog cannot be educated. If I teach a dog, "My dear dog, please think of Kṛṣṇa," he is animal; it is not possible. But a human being, although at the present moment he is like a dog, but he can be trained to become a human being and think of Kṛṣṇa. That is possible. So we should take the opportunity. Bahūnāṁ janmanām ante (BG 7.19). This life is gotten after many, many births. We do not know. We have forgotten. This is the opportunity. And here is the proof, śāstra, that kṛṣṇāveśena tac-cittaḥ.
How Yamarāja, Vidura, returned to his place? Now, kṛṣṇāveśena tac-cittaḥ. He was fully absorbed in Kṛṣṇa thought. Not only Kṛṣṇa . . . you can go to Kṛṣṇaloka or any loka you desire. The yogīs, they also can do that, yoga practice. But that is not possible in this age. The so-called yoga practice going on simply bluff. Real yoga practice means one becomes so perfect that he will not die natural death. He will die when he likes. He will not be forced to die. When he thinks, "Now I am fully prepared. Now I shall leave this planet. I shall go to such-and-such planet, such-and-such loka," he will be immediately transferred. That is yoga practice. So that practice is not possible. Therefore still in India you will find many yogīs are there.
They come to Kumbha-melā—that will be held in the month of February—from distant places. And you will see, just like young men, but some of them are three hundred years old, four hundred years old. Still. How they are preparing themself? They think, a yogī thinks that, "Now I am not prepared. There may be mistake. I am not prepared to enter such-and-such planet." So that concession is given there by the yogic practice. Just like you appear for an examination. Unless you are fully prepared, you are certain that, "I must pass," you do not appear. Similarly, the yogīs, unless one thinks that, "I am now fully competent to enter such-and-such planet," he does not give up this body.
But that practice may be successful for one or two person. Generally, it is not successful. But this Kṛṣṇa consciousness, bhakti-yoga system, is so easy and perfect that if you simply think of Kṛṣṇa, and if you become perfect and to think of Kṛṣṇa at the time of death, then immediately you are transferred to the Kṛṣṇaloka. Or any loka you like. Not only Kṛṣṇaloka, any loka. If you desire to go to heavenly planet, to Brahmā planet, to Satyaloka, Maharloka, Janaloka . . . many thousands and millions of planets are there. Or even if you want to go beyond this material world, to the Vaikuṇṭha planet, Kṛṣṇa planet, Goloka planet, you can go there. This is the science. That is stated in the Bhagavad-gītā, yānti deva-vratā devān pitṟn yānti pitṛ-vratāḥ (BG 9.25).
People . . . just like they are very much anxious to go to the moon planet. And what is this nonsense moon planet? It is also a material planet. Actually if you go moon planet, you can live for ten thousands of years. That is the statement in the śāstra. But after ten thousands of years you have to die. So if you go to any planet within this material world, the four material, I mean to say, problems, namely birth, death, old age and disease, will follow you. You may live in one planet . . . just like we are allowed to live on this planet utmost hundred years, not more than that. Or the ant is allowed to live for six hours. Or another fly is allowed one moment. There are different varieties of . . . or Brahmā is allowed to live for millions of years. So according to the different types of body, we are allowed to live under certain duration of life. But nobody can be immortal here. That is not possible. That is possible when you transfer yourself to the spiritual world, Vaikuṇṭhaloka. Yad gatvā na nivartante tad dhāma paramaṁ mama (BG 15.6). That is possible. So this Kṛṣṇa consciousness movement is teaching, educating people in such a way that not only he goes to the spiritual world, but he goes to the highest planet of the spiritual world, Goloka Vṛndāvana, where Kṛṣṇa is there. Where Kṛṣṇa is there.
So viduro 'pi parityajya prabhāse deham ātmanaḥ. Deha, parityajya deham. So we give up this body. I am not lost; I am transferred to another body. We give up this body. Just like I give up one kind of dress; I take another kind of dress. Vāsāṁsi jīrṇāni yathā vihāya (BG 2.22). These are all stated in the Bhagavad-gītā. As we change our dress, similarly, we change our body. And this way, transmigration is going on. So this human life should be engaged in such knowledge and cultivation of knowledge that after leaving this body, we are not going to accept another material body, but we be transferred directly to the spiritual world, and we are situated in one of the spiritual planets, as I desire. There are many millions of spiritual planets also. So far we are concerned, we are concentrating our mind to be transferred to the spiritual world, in the highest, topmost planet there, Kṛṣṇaloka, Goloka.